** S&P 500 energy index .SPNY up 1.3%, tracking higher crude prices O/R
** Brent crude futures LCOc1 up 2.8% at $97.59/barrel; U.S. West Texas Intermediate crude CLc1 gains 2.1% to $93.23/barrel
** Crude prices gain reversing earlier declines as the market questioned whether peace talks between the U.S. and Iran would achieve a deal to end the war that has disrupted energy supplies from the Middle East
** Energy majors: Exxon Mobil XOM.N and Chevron CVX.N gains 1.7% and 1.4% respectively
** Valero Energy VLO.N, Marathon Petroleum MPC.N, ConocoPhillips COP.N and EOG Resources EOG.N rise between 1.8% and 2.9%; among the top percentage gainers on the energy index
** Oil and gas producers: APA Corp APA.O up 1.6%, Occidental Petroleum OXY.N gains 1.2% andd Coterra Energy CTRA.N rises 1.3%
** Refiner Phillips 66 PSX.N up 1.6%
(Reporting by Sumit Saha in Bengaluru)
((Sumit.Saha@thomsonreuters.com;))